Sector, brass
1600
- Title
- Sector, brass
- Collection
- Caltech Photographs
- Series
- Scientific Instrument Photographs
- Dates
- 1600
- Extents
- 1 photographs (negative)
- Abstract
- Galileo is credited with having invented the instrument, which is also known as a proportional compass. See Galileo’s “Operation of the Geometric and Military Compass”; also “Scientific Instruments Ancient and Modern.” Mfg: Gottfriedt Reiff, Nuremberg, Germany.